diff options
Diffstat (limited to 'converter/other/fiasco/input/nd.c')
| -rw-r--r-- | converter/other/fiasco/input/nd.c | 31 |
1 files changed, 17 insertions, 14 deletions
diff --git a/converter/other/fiasco/input/nd.c b/converter/other/fiasco/input/nd.c index 52d48e61..129a150e 100644 --- a/converter/other/fiasco/input/nd.c +++ b/converter/other/fiasco/input/nd.c @@ -1,8 +1,8 @@ /* - * nd.c: Input of prediction tree + * nd.c: Input of prediction tree * * Written by: Ullrich Hafner - * + * * This file is part of FIASCO (Fractal Image And Sequence COdec) * Copyright (C) 1994-2000 Ullrich Hafner */ @@ -31,7 +31,7 @@ /***************************************************************************** prototypes - + *****************************************************************************/ static void @@ -42,7 +42,7 @@ decode_nd_tree (wfa_t *wfa, bitfile_t *input); /***************************************************************************** public code - + *****************************************************************************/ void @@ -56,7 +56,7 @@ read_nd (wfa_t *wfa, bitfile_t *input) */ { unsigned total = decode_nd_tree (wfa, input); - + if (total > 0) decode_nd_coefficients (total, wfa, input); } @@ -64,7 +64,7 @@ read_nd (wfa_t *wfa, bitfile_t *input) /***************************************************************************** private code - + *****************************************************************************/ static unsigned @@ -106,7 +106,7 @@ decode_nd_tree (wfa_t *wfa, bitfile_t *input) { unsigned label; - if (wfa->level_of_state [next] > wfa->wfainfo->p_max_level + 1) + if (wfa->level_of_state [next] > wfa->wfainfo->p_max_level + 1) { /* * Nondetermismn is not allowed at levels larger than @@ -114,7 +114,7 @@ decode_nd_tree (wfa_t *wfa, bitfile_t *input) */ for (label = 0; label < MAXLABELS; label++) if (ischild (state = wfa->tree [next][label])) - queue_append (queue, &state); /* continue with childs */ + queue_append (queue, &state); /* continue with children */ } else if (wfa->level_of_state [next] > wfa->wfainfo->p_min_level) { @@ -123,7 +123,7 @@ decode_nd_tree (wfa_t *wfa, bitfile_t *input) { unsigned count; /* Current interval count */ unsigned range; /* Current interval range */ - + count = (((code - low) + 1) * sum1 - 1) / ((high - low) + 1); if (count < sum0) { @@ -192,7 +192,7 @@ decode_nd_tree (wfa_t *wfa, bitfile_t *input) static void decode_nd_coefficients (unsigned total, wfa_t *wfa, bitfile_t *input) /* - * Read #'total' weights of nondeterministic part of 'wfa' + * Read #'total' weights of nondeterministic part of 'wfa' * of given 'input' stream. * 'frame' gives the current frame number. * @@ -204,24 +204,24 @@ decode_nd_coefficients (unsigned total, wfa_t *wfa, bitfile_t *input) { unsigned *coefficients; /* array of factors to encode */ unsigned *ptr; /* pointer to current factor */ - + /* * Decode array of coefficients stored with arithmetic coding */ { const int scaling = 50; /* scaling factor of prob. model */ unsigned c_symbols = 1 << (wfa->wfainfo->dc_rpf->mantissa_bits + 1); - + ptr = coefficients = decode_array (input, NULL, &c_symbols, 1, total, scaling); } - + /* * Fill 'wfa->weights' with decoded coefficients */ { unsigned state, label; - + for (state = wfa->basis_states; state < wfa->states; state++) for (label = 0; label < MAXLABELS; label++) if (ischild (wfa->tree [state][label]) @@ -235,3 +235,6 @@ decode_nd_coefficients (unsigned total, wfa_t *wfa, bitfile_t *input) } Free (coefficients); } + + + |